Home / 8,977.02-12,386.22-5,439.48

Finding the Fourth Proportional to 8,977.02, 12,386.22 and 5,439.48

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Solution

The fourth proportional to 8,977.02, 12,386.22 and 5,439.48 is: 7,505.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977.02 : 12,386.22 = 5,439.48 : x
  2. Step 2: Convert to fraction form
    8,977.02/12,386.22 = 5,439.48/x
  3. Step 3: Cross multiply
    8,977.02x = 12,386.22 × 5,439.48
  4. Step 4: Simplify right side
    8,977.02x = 67,374,595.97
  5. Step 5: Solve for x
    x = 67,374,595.97/8,977.02
  6. Step 6: Final answer
    x = 7,505.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.